FIELD: metal pressure forming. SUBSTANCE: method comprises steps of making deep hollow parts such as sleeves from sheet blanks by multitransition drawing of intermediate semifinished products without a flange and with a flange, trimming the flange, rolling it out with thickening of a wall; performing an operation of drawing with the flange up to a height of the semifinished product, determined according to a relation, given in a description of the invention. EFFECT: enhanced quality of parts, increased efficiency, lowered labor consumption. 1 cl, 1 dwg
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Authors
Dates
1995-02-20—Published
1991-07-08—Filed